Mold for forming ornamental concrete ceilings.



w. F. TUBESING. MOLD FOR FORMING ORNAMENTAL CONCRETE CEILINGS.

APPLICATION FILED APR. 18,1914.

Patented Aug. 14,1917.

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rrn are T FFT@ MOLD FOR FORMING ORNAMENTAL CONCRETE CEILINGS.

Application filed April 18, 1914.

To all whom it may concern:

Be it known that I, VILLIAM F. Tunas- ING, a citizen of the United States, residing at the city of Milwaukee, county of Milwaukee, and State of Visconsin, have invented new and useful Improvements in Molds for Forming Ornamental Concrete Ceilings, of which the following is a specification.

My invention relates to improvements in methods and molds for forming ornamental concrete ceilings, and the same is explained by reference to the accompanying drawings in which,

Figure 1 is a perspective view thereof, part in section, and part broken away sh0W- ing the forming molds, two supporting beams and one supporting post in position for supporting the concrete while being set and hardened.

Fig. 2 is a perspective view of one end of one of the molds employed for forming the concrete joists.

Fig. 3 is a perspective View, of one of the panels, shown in Fig. 1, removed from the ceiling. The panel 8 may be made either plain as shown in Fig. 3 or it may be provided with ornamental figures of any desired design, substantially like two of the panels shown in Fig. 1.

Figs. 4 and 5 are vertical sections of the upper ends of one of the supporting posts drawn at right angles to each other.

Fig. 6 is a perspective view of one of the stay blocks, from which a hanger may be suspended within the joist mold.

Fig. 7 shows a modified form of panel.

Like parts are identified by the same reference numerals throughout the several views.

A represents the mold with which the supporting joists are formed. Each of the molds A are made up of two separate plates 1, 1, which are rigidly secured together at their lower contiguous edges 2 by a plurality of bolts 3, and said lower edges 2 may, if desired, be further reinforced by a plurality of U shaped clamps 4:. When the clamps 1 are employed, they are provided with bolt receiving apertures, which register with the apertures in said plates 1 and when said clamps are. in place the bolts 3 are inserted through the apertures of the clamps and plates as shown in Fig. 2. When however, the clamps 4 are dispensed with the bolts 3 are inserted through the contiguous edges of the mold plates 1 as shown in Specification of Letters Patent.

Patented Aug. 1st, 1917. Serial No. 832,680.

Fig. 1. The upper sides of the mold plates 1 are provided with a plurality of bar hangers 5, which serve to retain the upper edges of the mold plates 1 at uniform dis, tances apart, while said bar hangers serve as a means for suspending a stirrup within the concrete which forms the joists preparatory to placing the concrete. The several joist molds are supported from a plurality of beams 6, and said beams 6 are supported at short intervals apart by a plurality of posts 7. Then said parts are in place, as shown in Fig. 1, a plurality of panels 8 are placed thereon, as shown in said figure, when a layer of concrete is poured upon the panels and into the spaces 10 between the opposing members 1 of said joist molds, when said joist molds and panels are permitted to remain in place until the concrete has set and hardened. As a meansof securing a wooden floor to the surface of. concrete, :1 preferably provide the concrete with a plurality of nailing strips B. The nailing strips B, are formed of a single piece of metal-comprising the two horizontal flanges 12, 12, and the two vertical flanges 13. The vertical flanges 13 being connected together at their lower edges, whereby such vertical flanges 13 are retained in resilient contact with each other, and whereby when the floor retaining nails are driven through the floor and between the members 13, said members 13 are caused to firmly impinge against the lower ends of such nails, whereby the fioor is securely retained in place upon the surface of the concrete.

The upper edges of the members 1, 1 are provided at uniform distances apart with recesses 1 1 for the reception of the respective ends 15 and 16 of the panels 8. Attention is called to the fact that one of the ends 15 of the panel 8 terminates clownwardly, while the opposite ends 16 terminate upwardly forming a groove 17 in said panel for the reception of the end 15 of the next adjacent panel. Thus a plurality of panels may be interlocked together as shown in Fig. 1. By the modified structure shown in Fig. 7, several panels are formed integrally, the same being provided with a plurality of downward bends 18 adapted to engage in the recesses 14 formed in said joists.

In view of the fact that the distance be tween the floor and the joists in all buildings is not uniform, I have provided means for extending the supporting posts 7, so that the upper end may be caused to rest beneath the lower side of the cross beam 6. As a means of extending-the posts 7,1 have provided the upper ends of said posts with two metallic extension members 19 and 20. The member 19 is provided with a vertical series of holes 21 for the reception of the cross pin 22. The cross pin 22 is supported at the top of the post within the aperture 23 of the retaining collar 20. The retaining collar 20 is preferably formed of sheet metal, and the same is provided with a horizontal member 24, which is adapted to be turned inwardly over the upper end 25 of said post, whereby said collar is prevented from dropping and securely retained in place around the upper end of the post. When the collar is thus located, the member 19 is inserted within the same, as shown in Fig. 1, when it is raised until the beam 6, therein, is brought in contact with the lower side of the joist mold A, when the pin 22 is inserted through the apertures 23 and one of the series of apertures 21, whereby the cross beam 6 is retained in place against the lower side of the joist mold A.

When the bar hanger 5 has been inserted between the upper edges of the mold 1, as shown upon the left in Fig. 1, a metallic loop 26 and rods 26 are suspended therefrom and serve to strengthen the concrete joists. It will be understood that the several panels 8 may be provided with ornamental figures 27 of any desired design, as shown in Fig. 1, and that said panels may be permitted to remain in contact with the lower surface of the concrete 9, or they may be removed with the other parts of the mold after the concrete has hardened as desired,

Copies of this patent may be obtained for when of course, the ornamental figures 27 formedin the panels 8 will leave their impress in the lower surface of the concrete after such panels have been removed. When the concrete has been thus placed and bar dened, the pins 22 are first removed from the members 19 and 20. When this is done the members 19 are moved downwardly and out of contact with the cross beams 6, when the posts 7 are withdrawn. When the posts 7 have been withdrawn, the cross beams 6 are removed from beneath the molds A. The bolts 3-are then withdrawn from the contiguous edges of said molds, when said mold plates are separated and removed from the concrete joists. Then this is done the panels 8 may be readily withdrawn from the lower side of the concrete floor 9, or if desired, said panels 8 may be permitted to remain in contact with the lower surface of the concrete as circumstances may require.

Having thus described my invention what I claim as new, and desire to secure by Letters Patent, is

The combination of a plurality of joist molds formed in parallel series to each other at suitable distances apart, provided with notches for the respective ends of the panels and a plurality of removable panels supported from the upper edge of saidjoist molds, said molds being adapted to give the desired form to the concrete located in said molds and on said panels.

In testimony whereof I aflix my signature in the presence of two witnesses.

WILLIAM F. TUBESING. Witnesses J AS. B. ERWIN, IRMA D. BRENER.

five cents each, by addressing the Commissioner of Patents.

Washington, D. G. 

